Inside the app
A closer look.
About this app
Made for a clear purpose.
Creelcurve is a native fisheries field lab for effort-standardized CPUE, length-frequency structure, proportional stock density, Chapman mark-recapture estimates, catch-curve mortality screening, and station records.
Record individual fish lengths and weights, maintain effort sets by station and gear, and see the survey update immediately. The Lengths workspace builds a live histogram and applies editable stock and quality thresholds. Population provides mark-recapture and catch-curve tools with assumptions shown beside the result. Stations preserves gear, effort, water temperature, and depth.
A complete worked sample opens on first launch. Surveys persist locally and a native PDF field packet can be exported through the system share sheet.
No account, advertising, analytics SDK, subscription or external purchase is required. The complete experience is included in the one-time paid download.
